1.
As the CTD descends, water passes through electronic conductivity and temperature
cells behind this protective plate. Also behind the plate, a small pressure
sensor records the changing depth of the instrument. Quarterdeck Volume 5, Number 1, Spring 1997
1.
As the CTD descends, water passes through electronic conductivity and temperature
cells behind this protective plate. Also behind the plate, a small pressure
sensor records the changing depth of the instrument.
2. A small pump pulls seawater through the conductivity and temperature cells then ejects it back into the water column.
3. Air bubbles trapped inside the tube are released through an escape valve.
4. A sturdy metal cylinder
houses a battery to supply power to the instrument, as well as a small computer
that collects the data and transmits them to the surface through a conducting
cable connected at one end. This unit can also receive data from other instruments,
integrate them with CTD data, and relay all the information to the surface
or store it internally.
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